Патент USA US3095487код для вставки
June 25, 1963 D. J. LESLIE 3,095,477 SYSTEM FOR RECORDING AND REPRODUCING ELECTRIC ORGAN MUSIC Filed Jan. 12, 1959 4 Sheets-Sheet 5 ?ll _/ ,7 5’0 4; / !, spa/(4w w/m : ACOUST/L' TPEMULA/VT MGM ‘ | I : .5? : SPEAKER wm/aur ' II 67 TREMULANT i 4a l/VAUD/ELE J? 2 s/a/v/u GEN. mesa/mm; MACH/NE 172/ . 6’. , ‘ I 9 .990 2g I “PRODUCER / SPEAKER w/n/ Acousr/c mmum/vr | I 121, .42 E | KN ff INAUD/BLE SIGNAL p SENS/N6 nzwcz l I spa/(£1? w/maur m-Mum/vr / 3/ INVENTOR. ,DOMQLD (I Leszxs ‘324m @4714” United States Patent Of Free: 1 3,095,477 ‘Patented June 25, 1963 2 Referring to the drawings: 3,095,477 SYSTEM FOR RECORDING AND REPRODUCING ELECTRIC ORGAN MUSIC Donald J. Leslie, 313 S. Fair Oaks Ave., Pasadena, Calif. Filed Jan. 12, 1959, Ser. No. 786,151 15 Claims. (Cl. 179--1) > FIGURES i1 and 2 are diagrammatic views illustrating, respectively, recording and reproducing apparatus in ac cordance with one form of the present invention; FIGS. 3 and 4 are diagrammatic views illustrating, re spectively, recording and reproducing apparatus in ac cordance with a second form of the present invention; FIGS. 5 and 6 are diagrammatic views illustrating, This invention relates to a system for recording and reproducing music played on an electric organ. respectively, recording and reproducing apparatus in ac In order that music of this character be pleasing to 10 cordance with a third form of the present invention; the ear, it has been common to produce a vibrato or FIGS. 7 and 8 are vdiagraimnatic views illustrating, re pitch tremolo therewith. This tremolo is effective when the pitch of any note is alternately raised and lowered spectively, recording and reproducing apparatus in ac cordance with a fourth ‘form of the present invention; and about six or eight times a second. FIGS. 9 and 10 are diagrammatic views- illustrating, When a record is made of such organ music in which 15 respectively, recording and reproducing apparatus in ac pitch tremolo is present, a mere playing of the record cordance with a ?fth form of the present invention. does not properly simulate the “greatness” of organ music. In reproducing recorded electronic organ music, a sen It is one of the objects of this invention to make it sation of realism or‘ actual presence of the artist is created possible to record and reproduce organ music in such by the use of a speaker that is substantially identical to manner that the illusion of original organ music is pre 20 the one normally'used 'withthe organ in question. But served, and pitch tremolo eifects created. By recording many such speaker structures‘ incorporate movable de vices for adding tremolo acoustically. The tremolo‘ can be recorded by using a microphone; but a sensation of the original wave forms are preserved without any acous presence cannot be created in this manner. Instead, the tical effects‘ or limitations being imposed. The record 25 movable devices of the speaker must reproduce the opera thus made is of a straight character that is not generally tions occurring during recording if realism is ‘to be creTa-ted. the electrical impulses directly from the electric or elec tronic organ console before they are released as sound, useful when played through ordinary sound systems. Since an acoustic tremulant, such as a rotating horn-type Thus, the organ speaker used for reproduction must be actuated in the identical manner that it would have been if the organist were present. The speaker structure is ?t of this treatment is applied at the time the record 30 actuated in two distinct ways:-?rst of all, electrical im is. played; and if the recording is carefully made without pulses corresponding to sound are applied to transducers; distortion or noise, it becomes impossible to distinguish secondly, signals or energization are applied to apparatus whether the selection is being played by an organist or that operates the acoustic tremulant apparatus. speaker system‘, imparts perspective and realism, the bene whether a‘ record is being used as the source of music. In ' The velectrical impulses corresponding to sound can, of eifect, the electrical impulses that represent the music are 35 course, be directlyrecorded and used later to drive trans~ intercepted and merely delayed before they become sound, ducers of the speaker structure. The recording of im and as no microphones are used in the system, the usual pulses is‘ done directly so that no acoustic qualities pre acoustical problems are not present; for instance, a maturely modify the impulses. The on-oif control or famous organist could make a special recording of the energization of the physically rotating acoustic tremulant character described, and this recording could be played apparatus can also, be recorded, at least in a form ap at a distant point, the results being the same as though the organist were actually playing an organ at the said distant point. > g - Normally the acoustic tremulant (for'reality) is con propriate for recording. ‘ FIGS. 1 and 2 diagrammatize an elementary system for accomplishing the foregoing result. The organ console 1 has an output connected both to a recorder 2 and a moni~ trolled by an on-o?” switch on the organ console, whereby 45 toring speaker 3. l The monitoring speaker 3 includes ap the rotary horn speaker is at times operative, and at other times inoperative, depending upon the desired inter pretive effects. Another object of this invention is to incorporate signal means whereby on-olfoperation of the rotary horn speaker is faithfully reproduced. I In some organ systems, acoustic tremulant is added separately to different tones. For example, trem-ulant paratus for producing tremulant acoustically, as by rota tion of a sound channel. It is preferably identical to a speaker to be used in reproduction. The recorder 2 50 makes a record of the impulses produced by organ 1 and applied to the monitoring speaker 3 and- not what the speaker 3 produces. The organist also controls the periods of operation of the acoustic tremulant apparatus incorporated the may separately be controlled, as by ‘different tabs, for string tones,rreed tones,retc. This is provided, in essence, 55 speaker structure 3. A switch 4, usually attached at the by a plurality of separate‘ electrical-acoustic channels. organ console 1, serves as a means ‘for controlling the Other organ systems may incorporate numerous electrical ac'ou’stic channels for reasons other than acoustic tremu lant. An object of this invention is to provide a simple system ‘for faithfully recording‘ and reproducing multiple channel organv music. ' tremulant. A control line 5 extends to the speaker; the line 5 may carry a control impulse, as forv example to a power relay, or it may carry the energization current for the apparatus. The switch 4 is manipulated in accord ance with the interpretive effects intended to be provided This invention possesses many other advantages, and by the organist. ‘ ’ has other objects ‘which may be made more clearly ap In order to make use of the single recording ‘channel parent from a consideration of several embodiments of of the recorder 2 for purposes of recording both the musi the invention. For this purpose, there are shown a few 65 cal actuation and the tremulant actuation, an inaudible forms _in_ the drawings accompanying and forming part of the present speci?cation. These forms will now be de scribed in detail, illustrating the general principles of the signal generator 6 is used which, for example, produces . a signal beyond the range of ‘audibility. This generator provides an output signal applied to the recorder 2 when~ invention; ‘but it is to be understood that this detailed ever the tremoloswitch 4 is in one of its. two positions. description is not to be taken in a limiting sense, since 70 For‘ this purpose, a switch 4a between the generator 6 and the scope of the invention is best de?ned by the appended the recorder 2 is provided that is closed Whenever the claims. tremolo switch 4 is closed, and opened whenever the ’ 3,095,477 3 tremolo switch 4 is opened. A. lead 7 extends from the signal generator 6 to the switch 4a, and a lead 8 extends 4 tremulant is added at the appropriate time. The second output, as at the lead 26, is applied directly to the trans ducer 21; and the remaining output 27 is applied to the other transducer 22. In this instance ‘as in the previous corded, since it is inaudible, does not interfere with the form, the entire speaker 3a is actuated in precisely the signals corresponding to musical tones. same manner as if by an organ console. In FIG. Zthere is illustrated a reproducing system op In FIGS. 7 and 8 an organ console I, an inaudible sig erated by the record produced as previously described. nal generator 6 and a single-channel recorder 2 are illus The reproducer 9 has an output indicated by a connection trated. In the present example, the tremolo switch 4b 10‘ directly driving the electrical-acoustic transducers of the speaker structure 3. Furthermore, a device 11, by 10 merely switches the output from the organ console 1 be tween two speaker structures 30 and 31, one of which in the aid of a connection 12 to the output of the reproducer corporates continuously operable devices for acoustically 9, senses the existence or non-existence ‘of the inaudible ‘from the switch 4a to the rec-order 2. The signal re signal or, in essence, whether ‘acoustic tremulant is in tended or not. The sensing device 11 has an output 13 whichv operates a control 14 which, in turn, drives or con trols the speaker structure 3 in precisely the same man adding tremulant, and the other of which contains no acoustic apparatus at ‘all. The switch 4a establishes a connection between the recording machine 2 and the in audible signal generator 6 when the tremolo switch 411 is in one position, in this example in a position corre ner that the speaker 3 is normally controlled by the trem sponding to ‘application of acoustic tremulant. The sig olo switch 4. nal from the console 1 is applied directly to the re - Accordingly, the speaker 3, when used for reproduc» tion, is actuated in precisely ‘the same manner as if an 20 corder 2. The reproducing system in FIG; 8 for the recording organconsole instead of the reproducer 9 were used. It system of FIG. 7 incorporates an inaudible signal sensing is impossible to tell by ear that an organist is not present. device 11. It is connected to the reproducer 9 by ‘a lead In the form illustrated in FIGS. 3 ‘and 4, identical parts 12. The sensing device 11 has an output which controls are provided with similar reference characters. In the present. instance, a recorder 15 is provided that has two 25 a relay 32. The relay, in turn, moves a switch 28 be» tween alternate contacting positions. In one position the separate recording channels. The recorder may be of the switch 28 transmits signals from the reproducer 9 to one magnetic tape type having two heads cooperable with of the speakers 30, and in the other position to the op spaced 'bands of the tape. The signal corresponding to posite speaker 81. Accordingly, the recording and re-‘ the existence and non-existence of acoustic tremulant is producing system faithfully reproduces the organ music. recorded on a separate channel. Hence, the signal need ‘In FIGS. 9 and 10 there is illustrated a multiple-chan not be in the inaudible range since it is isolated in its own nel organ console 35. A speaker structure 3b includes recording channel. In this instance, the tremolo switch 4 four di?erent speaker assemblies 36, 37, 38 and 39 controls a signal generator 6a in essentially the same man labelled, respectively, “strings,” “reeds,” “tibia” and .ner as in the previous form. A lead 16, however, from the signal generator 6a and controlled by the tremolo 35 “pedal” by way of example, and cooperating with im pulses corresponding to such tones. ‘ switch 4 is applied to a separate channel in the recorder The speaker assemblies 36, 37 and 38 may each incor 15. porate rotary apparatus for acoustically adding tremulant ‘In FIG. 4 a reproducer 17 has, of course, two output to the sounds and in different manners appropriate to the channels. ‘One of them, which corresponds to the trem olo on-o? signal, is applied to the sensing device 11, and 40 tones reproduced by the speaker assemblies 36, 37 and 38. In the present example, the speaker assembly 36 incor by the aid of the control device 14, the acoustic tremulant porates four separate speakers, as does the speaker as of the speaker 3 is appropriately provided. The other sembly 37. The assemblies 38 and 39‘ may contain. one‘ output from the reproducer 17 is applied directly to .the or more speakers in parallel. The impulses correspond transducers of speaker structure 3, and it, of course, car ried the signals corresponding to musical tones. 45 ing to different tones may be segregated among the chan nels for purposes of eliminating certain “beat effects” and In the form illustrated in FIG. 5, an organ console 18 as described, for example, in my copending application provides two separate electrical outputs indicated by the Serial No. 500,5 68,'?led April 11, 1955, and entitled Elec leads 19 and 20. Separate transducer structures 21 and tric Organ Speaker System. 22 of a speaker 3a are driven by the respective outputs 19 The organ console 35 is illustrated :as having a multiple and 20. Acoustic tremulant is added only to the musical 50 channel output cable 40, the conductors of which are ap-> tones produced by the transducer 21, the control lead 5 propriately connected to the speaker assemblies 36, 37, extending only to this transducer. 38 and 39. Three separate tremolo switches 41, 42 and The segregation of output impulses for selective appli 43 are provided for the respective speakers assemblies 36, cation of acoustic tremolo is described, for example, in my copending application Serial No. 590,629, ?led June 55 37 and 38. By closing the switch 41, for example, tremo lant is added acoustically to the string tones. The switches 11, v1956, now’ abandoned, and entitled Speaker System 41, 42 and 43 are manipulated by the organist in a man for Adding Tremolo. A tremolo switch 4, identical to the previous switch, has ‘a control lead 5 which controls only I ner deemed appropriate ?or interpretive e?ects. The entire speaker structure 3b is, in this instance, actu the speaker structure 21. Associated with the tremolo switch is the signal generator 6a. The speaker 3a is actu 60 ated by thirteen channels or information. Thus, there are ten separate musical channels for actuation’ of the ated in three manners: ?rst, by an output at 19 from the transducers, and there are three leads 44, 45 and 46 ‘for organ console I in which acoustic tremulant may be controlling the apparatus for‘ acoustically adding tremu added; second, by an output at 20 in which tremul‘a-nt is lant. This information is recorded in the present ex-~ in this example never added; and third, by control lead 5 for operating the acoustic tremulant. To accommodate 65 ample by an elevenchannel recorder 47. A cable 48 applies the signal ‘from the ten musical this information, a three-channel recorder 23 is utilized. channels to ten of the channels of the recorder 47. The The signal generator 6a may be in the audible range. Ac eleventh channel or the recorder is used ‘for. the three‘ cordingly, it is applied to one of the three channels of the tremulant controls. When the tremolo switch 41, for recorder 23. The outputs ‘from the connections 19 and 20 are respectively applied to the remaining channels‘ of 70 example, is operated, a signal of one characteristic fre quency, say 100 cycles per second, is applied'to‘this the three~channel recorder 23. tremolo channel and by the ‘aid of a lead 49. If, how For purposes of reproduction and as illustrated in FIG. ever, the tremolo switch 42~is operated, a second char 6, a three-channel reproducer 24 is provided. One out acteristic frequency is applied to the tremolo channel of put, as at 25, is applied to a signal sensing device 11. An the recorder 47, in this example 500 cycles per second. output operating a control device 14 is provided so that 3,095,477 G Similarly, if the tremolo switch 43‘ is operated, a third characteristic frequency, as for example at 3000 cycles per second, is applied .to the eleventh channel of the recorder 47 via the lead 49. This is accomplished by the provision of three signal generators 50‘, 51 and 52 and switches 53, 54 and 55 respectively associated with the tremolo switches 41, 42 and 43. The switches 53, 54 and 55 connect re spectively to their signal generators 50, 51 and 52 and to the common lead 49. ~ for causing operation of the acoustic apparatus of the reproducer in accordance with said signal impulses of said record; and means cooperable with the record for apply ing- said musical impulses of said record to said reproducer. 5. The process of recording the music of an electronic instrument which produces sound only by the aid of a speaker system including acoustic apparatus for imparting tremulant, which comprises: producing, by the aid of the instrument, electrical impulses corresponding to musical For purposes of reproduction, a reproducer 56 (FIG. 10 tones that are free of acoustic effects, and independently 10) is provided. The reproducer 56 of course has eleven of the production of audible sound; intercepting the im pulses so produced at a stage in advance of the speaker output channels, ten of which are used to transmit sig system and recording the impulses on a record; controlling nals to the ten channels of the speaker 3b. The other the operation of the acoustic apparatus; producing an in channel has an ‘output lead 57 which is split by band-pass ?lters 58, 59 and 60 to three leads 61, 62 and 63. If a 15 audible signal in accordance with the operation of said acoustic apparatus; and recording said signal on said rec signal of 100 cycles per second exists at the output lead ord in a channel common at least to some of said impulses. 57, it is passed only to the lead 61. Similarly, if a signal 6. The process of recording the music of an electronic of 500 cycles per second exists, it is passed only to the instrument which produces sound only by the aid of a lead 62. And if a signal of 3000 cycles per second is present, it is passed only to the lead 63. 20 speaker system including acoustic apparatus for impart Sensing devices 64, 65 and 66 respectively appropri ately control the speaker assemblies 36, 37 and 38 of the speaker structure 3b, the devices cooperating with the respective leads 61, 62 and 63.. Whatever acoustic tremu ing tremulant, which comprises: producing, by the aid of the ‘instrument, electrical impulses corresponding to musical tones that are free of acoustic effects, and inde pendently of the production of audible sound; intercepting lant is used by the organist is ,rfa‘ithtully vreproduced by 25 the impulses so produced at ‘a stage in advance of the the system described herein. The inventor claims: '. , 1. The process of recording the music of an electronic instrument which produces sound only by the aid of a speaker system and recording the impulses on one channel of a two-channel record; controlling the operation of the acoustic apparatus; producing a signal in accordance with the operation of said acoustic apparatus; and recording the speaker system including acoustic apparatus for impart 30 signal on the other channel of said record. 7. The process of recording the music of an electronic ing tremulant, which comprises: producing, by the aid of the instrument, electrical impulses corresponding to musical tones that are free of acoustic effects, and inde organ having a plurality of separate electrical outputs, and a corresponding plurality of electrical-acoustic channels with at least one of which there is provided means for the impulses s0 produced at a stage in advance of the 35 adding tremulant acoustically, which comprises recording on a multiple-channel record the electrical impulses pro speaker system and recording the impulses ‘on a record; duced at said outputs respectively ‘and prior to their trans controlling the operation of the acoustic apparatus; pro lation into sound; and recording on said record a signal ducing a signal in ‘accordance with the operation of said indicative of the operation of a corresponding acoustic acoustic apparatus; and recording the signal on said rec 40 tremulant apparatus. ord. 8. The process of reproducing the music of an electronic 2. The process of reproducing the music of an elec organ having a plurality of separate outputs for electrical~ tronic instrument which produces sound only by the aid acoustic channels with at least one of which there is pro of a speaker system including acoustic apparatus for im vided means for adding tremulant acoustically, which com parting tremulant, which comprises: reproducing by the aid of a reproducer and a record, impulses produced by 45 prises: producing, by a multiple-channel reproducer and a record, a plurality of separate electrical outputs corre the instrument corresponding to musical tones, which sponding to the outputs of said organ prior to their trans impulses are free of acoustic eifects, the said impulses hav pendently of the production of audible sound; intercepting ing been produced independently of the production of lation into sound; transmitting said outputs respectively to separate electrical-acoustic channels of a speaker system‘ audible sound, and upon which record is also recorded a signal corresponding to the operation or non-operation 50 having means for adding tremulant acoustically in co operation With at least one of the channels; sensing a signal of said acoustic apparatus; applying the impulses to a recorded on said record which is indicative of desired speaker having acoustic apparatus for imparting tremu operation of said means; and controlling said means in lant; and controlling the acoustic apparatus -by the aid of accordance with said signal and by the aid of said sensing said signal. means. 3. In apparatus for recording music by the aid of elec 55 9. The process of recording music of an electronic organ trical impulses generated by an electronic organ having having a pair of transducers, one of which incorporates acoustic apparatus for adding tremulant, and having means for acoustically adding tremulant, which comprises: switch means for changing the mode of operation of said selectively switching the output of the organ between said, acoustic apparatus in accordance with the desires of the organist, the combination with said switch means of: a 60 transducers; recording on a record the output of said organ before its translation into sound; and recording on recorder connected to the organ for receiving and record ing said impulses free of acoustical e?ects; and means operatively associated With said switch means for apply said record a signal corresponding to the switching of the output between said transducers. 10. The process of reproducing music of an electronic ing signal impulses to the recorder for recording thereby in organ from a record that includes impulses produced by accordance with a change in the mode of operation of said 65 the organ prior to the translation of said impulses into apparatus whereby said signal impulses may later be sound and a signal corresponding to the switching of organ detected in conjunction with reproducing means, to control output between transducers, one of which incorporates acoustic apparatus for imparting tremulant thereby to re means for acoustically adding tremulant, which comprises: create the entire output of the organ. producing ‘an output from said record by the aid of a re 4. In apparatus for reproducing music of an electronic 70 producer; detecting said signal =from said output; and organ having acoustic apparatus for adding tremulant: a switching the output between two transducers in accord record of musical impulses devoid of acoustical e?ects, and ance with said signal, one of the transducers incorporating of signal impulses corresponding to a change in operation means for acoustically adding tremulant. of said apparatus; a reproducer having acoustic apparatus 11. The process of recording the music of an electronic for adding tremulant; means cooperable with the record 75 organ having a plurality of separate electrical outputs, a 3,095,477 7 8 corresponding plurality of electrical-acoustic channels, and acoustically: a selectively movable controller for each a plurality of separate means for adding tremulant acous of said means; a signal generator for each of said means; and a switch coupled to each controller for corresponding tically in cooperation with at least some of the channels, which comprises: recording on a multiple-channel record the electrical impulses produced at said outputs prior to their translation into sound; generating signi?cantly differ ent signals corresponding to the number of said means; and transmitting said signals to a channel of said record for recording in accordance with the operation of said separate means. 12. The process of reproducing the music of an elec tronic organ having a plurality ‘of separate outputs ‘for elec trical-acoustic channels and a plurality of separate means ‘for adding tremulant acoustically in cooperation with some of the channels, which comprises: producing by a mul tiple~channe1 reproducer, a plurality of separate electrical outputs; connecting said outputs respectively to separate electrical-acoustic channels of a speaker system having a plurality of separate means for adding tremulant acousti cally in cooperation with some of the channels; deriving recorded signi?cantly different signals indicative of the operation of said means; and respectively controlling-said means in accordance with said signals and by the aid of sensing means responsive to said signals. 13. For use in recording the music of an electronic organ having means for producing tremulant acoustically: a signal generator; a selectively movable controller for controlling said means; and a switch coupled to said con troller for correspondingly controlling said signal gener ator. 14. For use in recording the music of an electronic or gan having a plurality of means \for producing tremulant ly controlling said signal generators. 15?. The process of recording and re-creating the music of an electronic instrument which produces sound only by the aid of a speaker system including ‘acoustic appa ratus ‘for imparting tremulant, which comprises: produc- , ling, by the aid of the instrument, electrical impulses cor to musical tones that are free of acoustic ef 1,0. responding fects, and independently of the production of audible sound; intercepting the impulses so produced at a stage in advance of the speaker system and recording the im pulses on a record; reproducing the recorded impulses; and driving a speaker system including acoustic apparatus for imparting tremulant, by the aid of the impulses repro duced whereby the entire output of the instrument is re alistically re-created. References Cited in the ?le of this patent UNITED STATES PATENTS 1,724,191 2,285,132 2,373,560 2,541,051 2,627,555 2,811,588 2,841,654 vGoldsmith ___________ __ Aug. 13, 1929 Weathers ___________ __ June 2, 1942 Hanert ____ ___ ________ _'_ Apr. 10, 1945. Hanert ______________ __ Feb. 13, 1951 Luberoff ____________ __ Feb. 3, 1953 Julie ________________ __ Oct. 29, 1957 Athey et a1. ___________ __ July 1, 1958 OTHER REFERENCES “Electronic Organ Uses,” Electronics,v July 1955; pp. 116,117,118.